Electric system.



J. L. CREVEUNG.

ELE-CTRiC SYSJ EM. APPLICATION FILED MAY 21.4915

1,301,080, Patented Apr. 15,1919.

INVENT'OR.

"UNITED srnrns PATENT onmon Jenn L. cnnvnnmc, or AUBURN), NEW YORK.

ELECTRIC SYSTEM.

S pecifitation ofLetters Patent.

Patented Apr. 15, 1919.

Application filed May 21, 1915. Serial N 0. 29,525. Y

' To aa'Z whom it may concern:

Be it known that I, JOHN L. citizen of the United States, residing at Auburn, in the'county f Cayuga and State of New ork, have invented new and useful mprovements in Electric Systems, set forth CREVELING, a

source, at times, supplies current to the bat tery and, at times, to the translating devices, which devicesare e means whereb to provid ined above may be automatically operated.

generator is connected by the wire 4 with one terminal of the automatic switch indi cated at 5, the other terminal of which is connected through as by ad ustable spring 11, in left hand extremity of nary sliding contact variety. The said zero segment is connected as by wire 13 with one terminal of the translating circuit regulatthe storage batterv 22, th

' therein the aving in series therewith a'regu th1s instance is ing element 14, in this instance indicated as a carbon pile resistance, the before mentioned terminal of which is connected with t e wire 15, which, branching at 16, may be adjustably connected with the low resistance shunt 17, and with the shunt 18 aving in series therewith the coil 19, for a said shunts unite at the point 20, from which the wire 21 is led to the positive terminal of v e negative of which is connected as by the wire 23 with the ative pole of the generator land the having interpolated switch 26, from which wire 27 is led to the second terminal of the translating circuit regulator 14, which terminal communicates as by wire 28 with the/resistance device 29, provided From the wire 15 is led the Wire 31 to the adjustable resistance 32 connected with one brush of the meter armature 33, the opposite brush of which is connected as by wire 34 with the wire 21. The meter armature 33 is provided with a field by the permanent magnet 71 and is connected with the Worm of gears or metering I at 35 as a high ratio reduction gear, which may rotate the friction disk or pinion 36 upon rotation of ar- 1 to bridge the contacts 46*17 and allow current to flow from wire 15 through wire 45, cont-act 46-12-47, wire 48 having in'series therewith .the solenoid or coil 49, and through wire 50 to wire, 23.

If the field of magnet 37 be at any time insufficient to cause operative contact at 'circuit and provided with a 36-40, then the spring 39 will swing the armature 38 away from the coil 37 the extent of such movement being limited by the adjustable stop 43, and allow the lever 41 to return to the position indicated in the drawing, or brought into contact with its limiting stop 44, either by means 'of a spring, as indicated, or by gravity, as may be desired.

The solenoid 49 when excited is arranged to draw the core 51 downwardly and swing the lever 9 in a counter clockwise direction so that the lefthand extremity of the said lever will first gradually increase the resistance indicated at 12 to' a high value and then engage the blank segment 52, breaking the circuit therethrough, while simultaneously decreasing the resistance through the device 29 from infinity, as is inserted by the blank circuit 30, to practically zero, as when the lever 9 reaches the zero segment of the said device 29 indicated at 53.

54 is a dashpot, resisting too sudden movement of the lever 9.

The lamp regulator, in this instance indicated .aS comprising the carbon pile 14, is regulated by movement of the lever 55, normally drawn in an upwarddirection as by adjustable spring 56, tending to increase the pressure upon sistance thereof.

57 is a voltage coil across the translating circuit as indicated, and tending normally to draw its core 75 downwardly and increase the resistance 14, while too sudden movement of the core is restrained by the dashpot 76. r

The coil 8 is provided with a core 58 engaging the lever 59, whereby current 1n the coil 8 tends to cause the same to lift its core and swing the lever 59 to increase the resistance 3 and lower the voltage of the generator 1. Too sudden movement of the core 58'is restrained by the dashpot 60, while the amount of current flowing in t e coil 8 necessary to cause the same to move the lever 59 may be determined either by proportioning the parts so as to employ gravity for this purpose, or by an adjustable spring, as shown.

61 is a voltage coil across the translation core 62 engaging the lever 63 and tending to draw the same upwardly when excited, so as to increase resistance 3, while too sudden movement is restrained by the dashpot 64.

The automatic switch 5 is provided with a closing coil 65 in shunt across the generator 1, which coil is wound in such direction that it is assisted by the coil 6 when current flows from the generator 1 through the said coil 6.

66 is a small coil opposing the action of coil 65 when excited, and is connected from the wire 4, as shown, with one of the contacts indicated at 67, the other contact 67,

the pile and decrease the re- 27, switch 26 being. connected as indicated, with the wire 23. The said contacts 67 are electrically connected, when the lever 9 is in the position indicated in the drawing, in such manner as to connect the coil 66 across the generator. The coil 66 is wound in such manner that when excited it opposes the coil 65 and thereby causes the closing voltage of the switch 5 to be a little higher when 66 has its circuit completed, for a purpose as will hereinafter appear. I

In Fig. 11. like numerals are used to indicate like parts. And it will be noted that the metering mechanism of Fig. I. is omitted, while a voltage operatedcoil 69 across the battery 22 attracts, when sufficiently excited, the lever 70 and breaks contact between the same and the contact member 7 3 and establishes contact between the lever and contact member 7 2, thereby completing the circuit through coil 49, which will then move the lever 7 0' across the surface of the resistance element 14 and perform the same function of gradually shifting the generatorfrom the battery circuit to the translating circuit as when the circuit of said coil was completed in the'apparatus of Fig. I. by means of the metering mechanism.- When the voltage across the battery 22 is insufiicient to establish contact at 72 the contact at 7 3 is made and completes the circuit through the coil 66 upon switch 5, as indicated, which performs the same function as will hereinafter. be explained with regard to Fig. I.

An operation of my invention is substantially as follows: If the generator be at rest, or revolving below the critical speed, and the translating circuit switch 26 be closed, current will flow from battery 22 through wire 21 to point 20, where it will divide and part flow through shunt 17 to point 16, and part through coil 19 and shunt 18 to point 16, and thence through lating circuit regulating element 14, wire and wire 25 to the translating devices 24, from which return is made through wire'23.

And, I so adjust the spring 56 that, if the storage battery 22 have a voltage in excess of that desired upon the translating devices 24, current flowing through the shunt coil 57 acros the translation circuit will cause the said coil to draw the core 75 downwardly so as to depress the lever 55 against the action of spring 56 and increase the resistance 14 in such manner as to automatically hold the desired translating circuit voltage upon the translating devices in a. well known manner. I preferably use a translating circuit regulator which will hold this translation circuit 'voltage constant Within very narrow limits, though details of construction of such delicately operating regulators are herein purposely omitted for age to close the switch.

ulators are clearness, inasmuch as such now well known in the art.

the sake of regregardless of what position it may have been in at the time 37 released its armature 38.

The coil 19 is so wound that current flowing from the battery through the said coil to the translating devices tends to slightly weaken the field magnet 74 and the armature 3'3 as the the proportion of the current desired to be sent through the coil 19 by. ad the shunts 17 and 18 with respect to each other; while I adjust the relative amount of current-which shall go through the armature 33 by adjustable resistance 32, in a well known manner.

the translation circuit volten the switch 5 closes, current will flow from the generator 1 tirough wire 4, switch 5, holding coil '6,

wire 7, solenoid 8 and wire 7 to the lever 9,

EXCESS OVBI' and thence through wire 13, regulating element 14, wire 27, switch 26 and wire 25 to and if in excess of translating devlces,

the translating devices; the amount used in the the remainder w' hrough wire 15 to the point 16, divide and part flow through shunt 17 to the point 20, and part through shunt 18 and and wire 34) the coil 19 will the coil 19 to the h point 20 (a very small portion flowing through' wire 31, resistance 32, armature 33 and thence through 21 to the storage batter and return through wire 23 to the generator.

, iis charging current flowing into the stor ge battery will cause through the armature 33 in rection to that of th the b cause the armature '33 o revolve in a reverse direction and revolve the disk 40 in a counter clockwise direction and eventually cause contact member to cause electrical communication between the contact members 46 and 47, whereupon current will flow from wire 15 through wire 45, contact 4H nd, it Will be noted that the t e c arging current that escribed when the batteries were supp core 51 downwardly and against the action of dashpot 54 value, and then to infinity, if desired, as when the lever reaches the blan segment 52, and simultaneously decreasing the resistance at 29 from infinit 7 when the lever is on the blank segment 30 to practically zero when on 1e segment 53.

CO1 tacts at 67 and cut out the. coil 66. Throughout the operation of the generator it's shunt fie coil 2 is in series with the resistance 3,

so adjust the core 62 and instrumentalition, as supply sistance 14 and feed element 14 are adjusted to hold upon the translation circuit, the coil 61 will, in a sense, usurp thepfunction of regulating the translation circuit by increasing-resistance 3 and reventing the generator voltage from exceeding this said voltage maximum, which is very slightly, and preferably unnoticeably ('5. e. in lamp intensity) in excess of the normal translating circuit voltage. therefore, when the lever 9 is swung. throughout its range in a lefthanded direcabove mentioned, the generator will the translating devices at constant voltage, while the coil 57 will cause the resistance 1 4 to be greatly increased, and thereby prevent back discharge from the storage batteries to the translating devices, except through a very high resistance rendering such discharge negligible. Thus it will be seen that so long as the generator continue to run under these conditions it will simply supply the translating devices, while the battery may be held at its fully charged voltage, or a voltag in excess of that supplied by the generator, but restrained by the resistance 14.- from materially discharging to the generator and translating circuit.

Now, if the generator slow down until its voltage fall below that sufiicient to supply the translation circuit, the coil 61 will allow theresistance 3 to be withdrawn and the generator will supply its highest voltage for its speed of revolution. Simultaneously, coil 57 will allow spring 56 to withdraw re the translating devices from the battery as the load falls off from the generator. And if the generator stop, switch 5 will open and back discha ge will be prevented thereby.

If now, the generator be started up again immediately, or before suflicient current has been supplied by the battery to materially aifect the position of the lever 41,; coil will remain energized as before, 5

generator will remain connected the translation side of the regulator 14, while coil 66 will remaininoperative. d as soon as the generator reaches the translation circuit voltage, coil 65 will close the switch 5 and cut in the generator without altering the translation circuit voltage or causing a jump therein.

Then if the generator speed be increased, coil 57 will increase the resistance 14 and in eflect cut out the storage battery, while the translation circuit will be regulated by coil 61, as above mentioned. If, however, the generator slow down or stop inactive for an appreciable'length of time, the current flowing to the translating devices will cause the armature 33 to revolve and break the contact at 46-47 and allowthe spring 11-to return the lever 9 to the position shown 1n the drawing. And it will e considerable be obvious that the armature 33 and its 00- operating parts, operating as a meter to measure the current charge and discharge, as above described, will throw the generator connections from the battery circuit to the translation circuit when the battery is charged.

Further, it will be noted that the current passing to and from the battery through the coil 19 as above pointed out, will, in an adjustable manner, cause a greater current to pass through the battery in charging than is taken from it in discharging, and

that by properly adjusting the portion in the coil 19 the inefficiency of the batterv may be quite closely anticipated and compensated for. However, should the meter mechanism get out of phase, so to speak, with regard to the condition of the battery, the ultimate result will be that the battery at some time will fall below its normal operating voltage, whereupon the magnet 37 will release the armature 38 and the meter will immedi ately be reset automatically to allow a full charge to be given to the battery, and the metering operation will be begun over again.

An operation of the modification intended to be brought out in Fig 11. is substantially the same as that of Fig. 1., with the exception that the connection of the generator with the battery circuit or with the translation circuit is determined by the voltage of the battery 22 through the instrumentality of the coil 69, rather than through, the metering -mechanism shownin Fig. I That is, when the battery becomes charged until its voltage has risen to a predetermined maxiwhich may represent its charged Volta e, 69 will attract the lever 7 (1 against the a justable spring 71 and break the contact 7 3 through the coil 66 of switch 5 and complete the circuit through contact 7 2 an coil 49, whereupon the said coil will lift its core and swing the lever '70 across the car bon pile 14, having preferably a brush contact therewith, and in transfer the generator connection from theibattery circuit side of the member 14 to the translation circuit side thereof.

And, if the battery be now discharged until its voltage drop below this prede termined maximum, the parts may return to the position shown in the drawing, whereupon the generator circuit will be connected with the battery circuit and the (,Qll- 66 will be in circuit for the function described with regards to Fig. I.

I do not. wish in any way to limit myselfto any of the exact constructions nor modes of operation described above in this specification for the purpose of giving examples or illustrations of employment of my invention,-for it will be obvious that wide departure from the above may be that way gradually I scope of my invention, which is as set forth in the following claims:

he combination with a source of elecbe made.

bination with a'source of electrlcal potential diflerence, a storage battery circuit and a translation circuit, of means for connectin the source with the battery circuit and with the translating circuit, and means for determining which of said, connections shall be made, depending upon the condition of the battery.

e combination with a source of electrical potential difference, a storage battery for connectin the source with the battery circuit and with the translating circuit, and

I means for determining which upon t tte of said connections shall e made, depending upon t e amount of current supplied to the bat- The mbination with a source of elecal p0 6 co tric tential dlfl'erence, a i

he amount of current supplied by the a 7. The trical potential difference, a storage battery means for determining which of made, depending upon the amount .of current supplied to, and by the battery.

the battery circuit and with the translating circuit, and automatic means for determinwince or said connections shall be made.

ed by th pon on d regulator afiected by t e current delivered to, and taken from said battery.

12. The combination with a source of electrical potential difference, a storage batte a att d automatic means for connecting the source of electrical potential difference upon opposite sides 0 said'regulator affected in iflerent degree by current delivered to the atterv and by current taken from the battery.

13. The combination withasource of electrical p tential difierence. a storage battery, a atterv circuit. translating devices and a translation circuit, of t e battery circuit and trans] I the translation circuit, and automatic means for connecting the 5 The com bination with a source of electrical potential a batterv circuit. translation the battery circuit and-the translation circuit, and automatic means for connecting the source of electrical potential difference upon opposite sides of said regulator afiected in diflerent degree by current delivered to the battery and by current taken from the batcircuit and with the translating tery, and means afiecting the same in response to a condition of the battery.

16.- The'combination with a source of electrical potential difference, a storage battery, a battery circuit, translating devices and a translation circuit, of automatic means for connecting the said source with the battery circuit, of a main switch in circuit1 w1th the said source and means for altering the adjustment 0 said switch, in accordance w'th which circuit the source is connected with.

17. The combination with a source of electrical potential diflerence, a storage battery, a battery circuit, translating devices and a translation circuit, of automatic means for connecting the said source with the battery circuit and with the translating .circuit, of a switch in circuit with the said source and automatic means for altering the adjustment of said switch, depending upon which circuit the source is connected with 18. The combination with a source of electrical potential difierence, a storage battery, a battery circuit, translating devices and a translation circuit, of automatic means for connecting the said source with the battery circuit and with the translating circuit, 0 an automatic switch in circuit with the said source and automatic means for altering the adjustment of said switch, depending upon which circuit the source is connected with.

19. The combination with a source of electrical potential difierence, a storage battery, a battery circuit, translating devices and a translation circuit, of regulating means uniting the battery and translation circuits, means for connecting the source with the battery circuit under certain conditions and with the translation circuit under other conditions, and means for controlling the source.

20; The combination with a source of electricalpotential difference, a storage battery, a battery circuit, translating devices and a translation circuit, of regulating means uniting the battery and translation circuits, means for connecting the source with the battery circuit under certain con ditions and direc ly with thetranslation con "ions, "ic n for controlling the current deliverec. source to each of said circuits.

21. The combination with a s ica otential. di

tion or circuit.

- tery,

' devices directly other, means for connecting the source with the battery circuit under certain conditions and with the translation circuit under other conditions, and means for controlling the said source when connected with the translation circuit responsive to voltage fluctuations in the translation circuit.

22. The combination with a source of electrical potential difference, a storage battery, a battery circuit, translating devices and a translation circuit, of regulating means for connecting the battery and translation circuits, automatic means for controlling said regulating means to substantially prevent discharge from the battery, and automatic means for controlling the said source of electrical potential difierence actuated by voltage fluctuations across the translation circuit.

23. The combination with a source of electrical potential difference, a storage battery, a battery circuit, translating devices and a translation circuit, of interposed between the battery circuit and the translation circuit, means for operating the same in response to voltage fluctuations across the translation circuit and to substantially cut 05 the battery, and means for regulating the said source responsive to voltage 24. The combination with a' storage battranslating devices, and a controllable source of electrical potential difierence, 0 means for charging said battery from sai source against minor extraneous 0 position, and means for supplying the trans ating devices from said source against regulative oposition, means for terminating the charge to'the battery and supplying the translating from ing discharge of said battery thereto.

25. The combination with a storage battery, translating devices, and a controllable source of electrical potential diiierence, of means for charging the battery'from sai source, means for regulating the charge by regulating said source, means for supplying the translating devices from said source, and regulating the voltage upon said translating devices by rent from the source thereto while charging the battery, and means for supplying the translating devices from said source a lower voltage than that of the battery t1 said source and ophattery -53here-to.

' ieratcr tion a regulator fluctuations across the translation said source and opposopposing the flow of cur= response to voltage fluctuations when .con-

1,301,080 '7 sponse to current fluctuations only when connected with the erator voltage, means for preventing the battery circuit and in generator current from exceeding a predetermined limit, means causing the generator nected with the translation circuit. to be connected with the translation circuit e combination with a generator, to impress generator voltage thereupon and storage battery and storage battery circuit, of battery charge, and translating devices and a translation cirmeans ,for governin the generator in recuit, regulating means connecting the batsponse to voltage uctuations across the tery circuit and the translation circuit, translation circuit when the generator is 20 means for connecting the glenerator with the connected thereto.

battery circuit to charge e battery at gen- J OHN Li GREVELING. 

